﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace L1
{
    class Calculate
    {
        protected int a { get; set; }
        protected int b { get; set; }

        public virtual void DisplayResult()
        {
            Console.WriteLine("运算结果是：");
        }
    }
}
